Monday, May 28, 2012

More 24GHz Equipment

I have obtained this on eBay. Seller said "23GHz Low Band Unity Transceiver", so I hope to get it to work or maybe just salvage some parts or modules. Seems to have a SMA connector for LO. That is followed by a filter, amplifier and power divider with two more amplifiers, one for RX another for TX paths.




RX and TX path seem to have separated IF connectors (they look like MMX from GPS). Following pictures show the TX section with PA and WR42 waveguide port and RX section starting with WR42 and IF amplifier with filter.





Update from the eBay seller (thanks a lot!):
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1 Ground A GND 0V 0V Ground
2 +13 VDC A IX_13VDC +13+1V +13V +13V
3 +5VDC A IX_5VDC +5.0+0.25V +5.0V +5V
4 -5.25 VDC A IX_NEG5P25VDC -5.25+0.25V -5.25V5.25V
5 Ground A GND 0V 0V Ground
6 Spare A N/A N/A N/A Spare
7 RX Temp Sensor A XI_RX_TEMP 0 to 5V N/ARX Temp Sensor output
8 Ground A GND 0V 0V Ground

OK1EM sent me a picture of the unit without all the metallic parts. I don't have to remove all these to see what's beneath them. Thanks, Eda!


Saturday, May 5, 2012

SPRINT Microwave Contest May 5, 2012

Once again have SLAMS members participated on a microwave contest from the YMCA parking lot in the St. Louis West County, EM48sq with 1296MHz and 10368MHz equipment. Weather was very hot even early in the morning, got myself a sunburn as usual. Mel K0PFX and Jim KK0JIM shared the heat with me. I installed my 10GHz and 1296MHz stations, Mel has brought a 10GHz station too.

Jim and Mel aiming antennas

Mel and Herbert (sitting) listening to 10GHz

Nice view towards NW